Except that the slow blocktime will eliminate any real use of Bitcoin by itself. When the time for confirmation is longer than it takes to ship a few cigs or ca

Except that the slow blocktime will eliminate any real use of Bitcoin by itself. When the time for confirmation is longer than it takes to ship a few cigs or caps over, why bother? There is no real advantage in bitcoin if you can just hand over real, physical coins which cannot be double spent once they have arrived.